DRZ400SM bad mileage?

[enth]

Hi All,

Picked up a 2010 DRZ400SM the other week. The bike is supposed to be getting roughly 170-220km to a tank but I'm only getting around 60-70km before I need to turn it to reserve.

Has FMF pipe, 3x3 airbox mod and a rejet. I've been trying to do some research online as to why it's getting bad mileage but nothing solid comes up. Still feels great to ride, powerful and torquey. I've checked the spark plug to see if it's running hot but it looks normal.

Any ideas as to why I'm getting such low mileage with it?

[Scubbo]

errrr... petcock not leaking :O

[mossy1200]

A few years ago there was someone who could sniff the exhaust and tune a bike. I cant recall who it was though.

[mossy1200]

Should have sold my CB as a CB400RRRRRRRRRRRRZRTR because it's been re jetted and makes 908638hp at the front wheel, I tuned it by sniffing the exhaust.
Honest.

Found it.

[enth]

errrr... petcock not leaking :O

I don't think anything is leaking. No fuel smell and no fuel around the petcock/hose/tank area.

[awayatc]

Take a spare can of fuel with you....
mark odometer reading/trip counter and run the thing empty...
how many km to the tank .?

or how many liters does it take when you fill up after you done your 70 km ?

[enth]

Take a spare can of fuel with you....
mark odometer reading/trip counter and run the thing empty...
how many km to the tank .?

or how many liters does it take when you fill up after you done your 70 km ?

Takes roughly 7 litres after I've done 70km. It's about $15 or so to fill so $2/l = 7 or so litres. This is after I've turned it to reserve tank and found the closest gas station.

[mossy1200]

Takes roughly 7 litres after I've done 70km. It's about $15 or so to fill so $2/l = 7 or so litres. This is after I've turned it to reserve tank and found the closest gas station.

That's bad. One litre is 20km on my 1400 on open road.
The only bike I have owned with millage similar to yours is a SP1. Surely its running very rich or has a hole in a valve.

[enth]

That's bad. One litre is 20km on my 1400 on open road.
The only bike I have owned with millage similar to yours is a SP1. Surely its running very rich or has a hole in a valve.

Yea I would have thought the same.

Just figured out why I think it's getting bad mileage. Went for a ride to the Riverhead Pub this afternoon and it's roughly a 40km round trip for me. I reset the trip before I left and it's only reading 18.5 kms.

Now to figure out why....

[mossy1200]

Yea I would have thought the same.

Just figured out why I think it's getting bad mileage. Went for a ride to the Riverhead Pub this afternoon and it's roughly a 40km round trip for me. I reset the trip before I left and it's only reading 18.5 kms.

Now to figure out why....

If its running an after market speedo or a magnetic pulse style speedo with 2 magnets on the rim your likely to have only one magnet left but your speedo would be reading half speed also.

[Grashopper]

Are you sure it is reading in km not miles? Wouldn't be the first DRZ400SM in NZ that reads in miles.

Although 40 km would be roughly 25 miles....Hm...

What Mossy just said seems to make more sense.

Maybe go for another ride with your phone measuring the distance at the same time.

[enth]

Are you sure it is reading in km not miles? Wouldn't be the first DRZ400SM in NZ that reads in miles.

Although 40 km would be roughly 25 miles....Hm...

What Mossy just said seems to make more sense.

Maybe go for another ride with your phone measuring the distance at the same time.

I don't think I can change the A or B trip to miles. The speedo / km/h I can change to miles and it doesn't effect the trips or overall trip distance. It's been reading in kms the whole time.

There is a compensation function but the max it'll compensate the reading to is 35km from the original 18 which isn't enough.

[awayatc]

carburetor?
if so , check floatlevel.....

stuck choke/ fuel enrichment device?

[gwynfryn]

Did you wheelie most of the way to Riverhead?

[strandedinnz]

Dumb question .. not riding with the choke out are you ? :-)

My DRZ400SM does 175km till reserve regardless if I ride gentle or cane it everywhere :-)